<div class="full_w">
    <div class="h_title"><?php echo Yii::t('AdmincpModule.admincp', 'Categories'); ?></div>
    <h2>Categories</h2>
    <p>Categories provide a helpful way to group related posts together, and to quickly tell readers what a post is about. Categories also make it easier for people to find your content. Categories are similar to, but broader than tags</p>
    <div class="entry">
        <div class="sep"></div>
    </div>
	<?php 
		function buildTree(Array $data, $parent = null) {
		    $tree = array();
		    foreach ($data as $R) {
		        if ($R['category_parent'] == $parent) {
		            $child = buildTree($data, $R['category_id']);
		            // set a trivial key
		            if (!empty($child)) {
		                $R['children'] = $child;
		            }
		            $tree[] = $R;
		        }
		    }
		    return $tree;
		}
		
		function printTree($tree, $parent = null) {
			$r = "<ul class=\"dd-list\">";
			foreach ( $tree as $R ) {
				if ($R['category_parent'] == $parent ) {
					$r = $r . "<li class=\"dd-item\" data-id=\"{$R['category_id']}\"><div  class=\"dd-handle\">{$R['category_name']}</div>" . printTree( $tree, $R['category_id'] ) . "</li>";
				}
			}
			$r = $r . "</ul>";
			return $r;
		}
	?>
    <div class="dd" id="cateList">
    <?php	if(!empty($arrCategories)){
    			//$arrCategories1 = buildTree($arrCategories);
				echo printTree($arrCategories);
    	}
	?>
	</div>
    <div class="entry">
        <div class="sep"></div>		
        <a class="button" href="javascript:void(0);" id="serialize"><?php echo Yii::t('AdmincpModule.admincp', 'Update'); ?></a>
        <a class="button add" href="<?php echo LINK_ADMINCP_CATEGORIES.'/form'; ?>"><?php echo Yii::t('AdmincpModule.admincp', 'Add Category'); ?></a>
    </div>
    
    
    <!--<pre> 
        <div id="info" style="border: 1px dashed black; padding: 4px 6px;">Waiting for data</div> 
    </pre>-->
    
</div>
 <style>




/**
 * Nestable
 */

.dd { position: relative; display: block; margin: 0; padding: 0; max-width: 600px; list-style: none; font-size: 13px; line-height: 20px; }

.dd-list { display: block; position: relative; margin: 0; padding: 0; list-style: none; }
.dd-list .dd-list { padding-left: 30px; }
.dd-collapsed .dd-list { display: none; }

.dd-item,
.dd-empty,
.dd-placeholder { display: block; position: relative; margin: 0; padding: 0; min-height: 20px; font-size: 13px; line-height: 20px; }

.dd-handle { display: block; height: 30px; margin: 5px 0; padding: 5px 10px; color: #333; text-decoration: none; font-weight: bold; border: 1px solid #ccc;
    background: #fafafa;
    background: -webkit-linear-gradient(top, #fafafa 0%, #eee 100%);
    background:    -moz-linear-gradient(top, #fafafa 0%, #eee 100%);
    background:         linear-gradient(top, #fafafa 0%, #eee 100%);
    -webkit-border-radius: 3px;
            border-radius: 3px;
    box-sizing: border-box; -moz-box-sizing: border-box;
}
.dd-handle:hover { color: #2ea8e5; background: #fff; }

.dd-item > button { display: block; position: relative; cursor: pointer; float: left; width: 25px; height: 20px; margin: 5px 0; padding: 0; text-indent: 100%; white-space: nowrap; overflow: hidden; border: 0; background: transparent; font-size: 12px; line-height: 1; text-align: center; font-weight: bold; }
.dd-item > button:before { content: '+'; display: block; position: absolute; width: 100%; text-align: center; text-indent: 0; }
.dd-item > button[data-action="collapse"]:before { content: '-'; }

.dd-placeholder,
.dd-empty { margin: 5px 0; padding: 0; min-height: 30px; background: #f2fbff; border: 1px dashed #b6bcbf; box-sizing: border-box; -moz-box-sizing: border-box; }
.dd-empty { border: 1px dashed #bbb; min-height: 100px; background-color: #e5e5e5;
    background-image: -webkit-linear-gradient(45deg, #fff 25%, transparent 25%, transparent 75%, #fff 75%, #fff), 
                      -webkit-linear-gradient(45deg, #fff 25%, transparent 25%, transparent 75%, #fff 75%, #fff);
    background-image:    -moz-linear-gradient(45deg, #fff 25%, transparent 25%, transparent 75%, #fff 75%, #fff), 
                         -moz-linear-gradient(45deg, #fff 25%, transparent 25%, transparent 75%, #fff 75%, #fff);
    background-image:         linear-gradient(45deg, #fff 25%, transparent 25%, transparent 75%, #fff 75%, #fff), 
                              linear-gradient(45deg, #fff 25%, transparent 25%, transparent 75%, #fff 75%, #fff);
    background-size: 60px 60px;
    background-position: 0 0, 30px 30px;
}

.dd-dragel { position: absolute; pointer-events: none; z-index: 9999; }
.dd-dragel > .dd-item .dd-handle { margin-top: 0; }
.dd-dragel .dd-handle {
    -webkit-box-shadow: 2px 4px 6px 0 rgba(0,0,0,.1);
            box-shadow: 2px 4px 6px 0 rgba(0,0,0,.1);
}
</style>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
<script src="../libs/jquery/nestable/jquery.nestable.js"></script>
<script>
function updateHierarchy(){
$.post("/admincp/categories/update_hierarchy", { ul: $('#cateList').nestable('serialize') }, function(data){ $("#info").html(data);}, "text" ); 	
}
$(function() {
	$('#cateList').nestable({
		listNodeName: 'ul',
        group: 1
    }).on('change', function(){
		updateHierarchy();
	});
	$( "#serialize" ).click(function(){
		updateHierarchy();
	});
/*	
	$( "ul.sortable" ).sortable({
		cursor: 'move',
		placeholder: "placeholder",
		connectWith: "ul.sortable",
		start: function(e, ui ){
             ui.placeholder.height(ui.helper.outerHeight());
        },
		 update: function(event, ui) {
			$.post("", { ul: $('ul.sortable').sortable('serialize') }, function(data){ $("#info").html(data);}, "text" ); 
		}
	}).disableSelection();
	
	$( "#serialize" ).click(function(){
		var argument = $( "ul.sortable" ).sortable('serialize');
		alert((argument));
		console.log($( "ul.sortable" ).sortable('serialize'));
		//console.log($( "ul.sortable" ).sortable('toArray'));
		//alert($("#cateList ul").serializeTree("id","data"));
	});
	

	$.ui.sortable.prototype.serialize1 = function(o) {
        var items = $(this.options.items, this.element).not('.ui-sortable-helper'); //Only the items of the sortable itself
        var str = [];
        
        items.each(function() {
            var list = $(this).find("ul.sortable");
            str.push(this.id + (list.size() >0 ? " " + list.sortable("serialize") : ""));
        });
        
        return "[" + str.join(",") + "]";
		
	};
	
	$.ui.sortable.prototype.serialize = function(o) {
        var items = $(this.options.items, this.element).not('.ui-sortable-helper'); //Only the items of the sortable itself
        var str = {};
        items.each(function(key) {
            var list = $(this).find("ul.sortable");
			str[key] = this.id;
			
			if(list.size() >0){
				str[this.id] = list.sortable("serialize");
			}
        });
		return str;
	};
	
	if(!window.console) {
	 window.console = {
		log: function() {
			alert(arguments[0]);	
		}	
	 }	
	}
*/
});
</script>